/*
 * Copyright 2012-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.stars.easyms.logger.support.logback.springboot.version2xx;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.ConsoleAppender;
import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.rolling.RollingFileAppender;
import ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy;
import ch.qos.logback.core.util.FileSize;
import ch.qos.logback.core.util.OptionHelper;
import org.springframework.boot.logging.LogFile;
import org.springframework.boot.logging.LoggingInitializationContext;
import org.springframework.boot.logging.logback.ColorConverter;
import org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter;
import org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertyResolver;
import org.springframework.core.env.PropertySourcesPropertyResolver;
import org.springframework.util.ReflectionUtils;

import java.lang.reflect.Method;

/**
 * <p>className: EasyMsDefaultLogbackConfiguration</p>
 * <p>description: 因原DefaultLogbackConfiguration权限问题新增相同代码的类</p>
 *
 * @author guoguifang
 * @date 2019-11-14 16:35
 * @since 1.4.0
 */
public class EasyMsDefaultLogbackConfiguration {

    private static final String CONSOLE_LOG_PATTERN = "%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} "
            + "%clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} "
            + "%clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} "
            + "%clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}";

    private static final String FILE_LOG_PATTERN = "%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} "
            + "${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}";

    private static final String MAX_FILE_SIZE = "10MB";

    private final PropertyResolver patterns;

    private final LogFile logFile;

    public EasyMsDefaultLogbackConfiguration(LoggingInitializationContext initializationContext,
                                             LogFile logFile) {
        this.patterns = getPatternsResolver(initializationContext.getEnvironment());
        this.logFile = logFile;
    }

    private PropertyResolver getPatternsResolver(Environment environment) {
        if (environment == null) {
            return new PropertySourcesPropertyResolver(null);
        }
        if (environment instanceof ConfigurableEnvironment) {
            PropertySourcesPropertyResolver resolver = new PropertySourcesPropertyResolver(
                    ((ConfigurableEnvironment) environment).getPropertySources());
            resolver.setIgnoreUnresolvableNestedPlaceholders(true);
            return resolver;
        }
        return environment;
    }

    public void apply(EasyMsLogbackConfigurator config) {
        synchronized (config.getConfigurationLock()) {
            base(config);
            Appender<ILoggingEvent> consoleAppender = consoleAppender(config);
            if (this.logFile != null) {
                Appender<ILoggingEvent> fileAppender = fileAppender(config,
                        this.logFile.toString());
                config.root(Level.INFO, consoleAppender, fileAppender);
            } else {
                config.root(Level.INFO, consoleAppender);
            }
        }
    }

    private void base(EasyMsLogbackConfigurator config) {
        config.conversionRule("clr", ColorConverter.class);
        config.conversionRule("wex", WhitespaceThrowableProxyConverter.class);
        config.conversionRule("wEx", ExtendedWhitespaceThrowableProxyConverter.class);
        config.logger("org.apache.catalina.startup.DigesterFactory", Level.ERROR);
        config.logger("org.apache.catalina.util.LifecycleBase", Level.ERROR);
        config.logger("org.apache.coyote.http11.Http11NioProtocol", Level.WARN);
        config.logger("org.apache.sshd.common.util.SecurityUtils", Level.WARN);
        config.logger("org.apache.tomcat.util.net.NioSelectorPool", Level.WARN);
        config.logger("org.eclipse.jetty.util.component.AbstractLifeCycle", Level.ERROR);
        config.logger("org.hibernate.validator.internal.util.Version", Level.WARN);
    }

    private Appender<ILoggingEvent> consoleAppender(EasyMsLogbackConfigurator config) {
        ConsoleAppender<ILoggingEvent> appender = new ConsoleAppender<>();
        PatternLayoutEncoder encoder = new PatternLayoutEncoder();
        String logPattern = this.patterns.getProperty("logging.pattern.console",
                CONSOLE_LOG_PATTERN);
        encoder.setPattern(OptionHelper.substVars(logPattern, config.getContext()));
        config.start(encoder);
        appender.setEncoder(encoder);
        config.appender("CONSOLE", appender);
        return appender;
    }

    private Appender<ILoggingEvent> fileAppender(EasyMsLogbackConfigurator config,
                                                 String logFile) {
        RollingFileAppender<ILoggingEvent> appender = new RollingFileAppender<>();
        PatternLayoutEncoder encoder = new PatternLayoutEncoder();
        String logPattern = this.patterns.getProperty("logging.pattern.file",
                FILE_LOG_PATTERN);
        encoder.setPattern(OptionHelper.substVars(logPattern, config.getContext()));
        appender.setEncoder(encoder);
        config.start(encoder);
        appender.setFile(logFile);
        setRollingPolicy(appender, config, logFile);
        config.appender("FILE", appender);
        return appender;
    }

    private void setRollingPolicy(RollingFileAppender<ILoggingEvent> appender,
                                  EasyMsLogbackConfigurator config, String logFile) {
        SizeAndTimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new SizeAndTimeBasedRollingPolicy<>();
        rollingPolicy.setFileNamePattern(logFile + ".%d{yyyy-MM-dd}.%i.gz");
        setMaxFileSize(rollingPolicy,
                this.patterns.getProperty("logging.file.max-size", MAX_FILE_SIZE));
        rollingPolicy.setMaxHistory(this.patterns.getProperty("logging.file.max-history",
                Integer.class, CoreConstants.UNBOUND_HISTORY));
        appender.setRollingPolicy(rollingPolicy);
        rollingPolicy.setParent(appender);
        config.start(rollingPolicy);
    }

    private void setMaxFileSize(
            SizeAndTimeBasedRollingPolicy<ILoggingEvent> rollingPolicy,
            String maxFileSize) {
        try {
            rollingPolicy.setMaxFileSize(FileSize.valueOf(maxFileSize));
        } catch (NoSuchMethodError ex) {
            // Logback < 1.1.8 used String configuration
            Method method = ReflectionUtils.findMethod(
                    SizeAndTimeBasedRollingPolicy.class, "setMaxFileSize", String.class);
            ReflectionUtils.invokeMethod(method, rollingPolicy, maxFileSize);
        }
    }
}